Flutter项目修改NDK版本后出现Gradle构建BigDecimal异常

问题情况 #

构建Flutter应用时先遇到NDK版本不兼容报错：

Your project is configured with Android NDK 1, but the following plugin(s) depend on a different Android NDK version:

• flutter_local_notifications requires Android NDK 27.0.12077973
  Fix this issue by using the highest Android NDK version (they are backward compatible).
  Add the following to D:\Coding\flutter\notification_test\android\app\build.gradle:

  android {
  ndkVersion = "27.0.12077973"
  ...
  }

按照提示修改build.gradle后，又出现Gradle语法异常：

• Where:
  Build file 'D:\Coding\flutter\notification_test\android\app\build.gradle' line: 11

• What went wrong:
  A problem occurred evaluating project ':app'.

No signature of method: java.math.BigDecimal.call() is applicable for argument types: (BigDecimal) values: [0.12077973]
Possible solutions: scale(), add(java.math.BigDecimal), max(java.math.BigDecimal), wait(), abs(), ulp()

• Try:

Run with --stacktrace option to get the stack trace.
Run with --info or --debug option to get more log output.
Run with --scan to get full insights.
Get more help at https://help.gradle.org.

BUILD FAILED in 5s
Error: Gradle task assembleDebug failed with exit code 1

解决方案 #

1. 修正build.gradle中的NDK版本写法 #

报错核心是你可能没给NDK版本号加双引号，Gradle会把不带引号的27.0.12077973当成数值解析，导致计算错误。打开android/app/build.gradle文件，确保NDK版本号被双引号包裹：

android {
    ndkVersion = "27.0.12077973"
    // 保留文件中其他原有配置
}

2. 确认已安装对应版本的NDK #

如果本地没有这个版本的NDK，需要先安装：

• 打开Android Studio，点击顶部工具栏的Tools > SDK Manager
• 切换到SDK Tools标签，勾选右上角的Show Package Details
• 找到NDK (Side by side)，展开后勾选27.0.12077973版本，点击Apply完成安装

3. 清理并重新构建项目 #

在项目根目录的终端中执行以下命令：

flutter clean
flutter pub get

之后重新运行你的Flutter项目即可。

内容的提问来源于stack exchange，提问作者WellItzShiv